So radiation is ubiquitous,
Household appliances: TV, refrigerator, air conditioning, microwave ovens, vacuum cleaners, etc.
Office equipment: cell phones, computers, photocopiers, electronic equipment, medical equipment, etc.
Home decoration: marble, laminate flooring, wallpaper, paint, etc.
Surrounding environment: high-voltage lines, power plants, television (radio) signal transmission towers, etc.
The environment of the surrounding areas: high-tension lines, power stations. （
The natural environment: sunspots, etc.
A healthy person can withstand a short 5000R load, but only 700R dose is enough to make a healthy person fatal threat, but each person's body resistance is different, and each person will have a different degree of symptoms. Generally exposure to electromagnetic radiation pollution can cause headaches, insomnia, heart rate irregularities and other central nervous system problems. At the same time, for some people's eyes may have an impact, vision loss, skin diseases and other phenomena, heavy and may cause cancer. For pregnant women, it may lead to miscarriage, and elderly people with cardiac pacemakers should be especially careful. At the same time, different people or the same person at different ages on the tolerance of electromagnetic radiation is not the same, even in the excessive environment, does not mean that all people will get sick, so there is no need to electromagnetic radiation "grass". However, the elderly, children, pregnant women or patients with pacemakers, sensitive to electromagnetic radiation and long-term work in the environment of excessive doses of electromagnetic radiation should take precautions.